Shalimar's Dinner Theater, part of the Baltimore Travel Plaza, will reopen tomorrow evening with ''Hot, Hot, Hot,'' ''a 90-minute extravaganza spanning 70 years of entertainment.''
That's according to producer Nick Massoni, who reports that the show will be an original one with an all-star cast. ''The musical revue will be a trip down memory lane with some of the country's favorite tunes from 1929 to 1990,'' according to a release. The show will be presented on weekends through February with a special show on Valentine's Day, Feb. 14. Doors open at 6 p.m., and the buffet will begin at 6:30 p.m. Show time is 8 p.m. Shalimar's first opened as a showcase for a Las Vegas-type revue, which ran for a year. More recently, the showroom reopened as a dinner theater with ''Little Shop of Horrors'' as the attraction. Todd Pearthree directed and followed this with a production of ''Guys and Dolls.'' That closed, and the showplace was empty once more.
The difference between the new dinner theater and the others is that the service is buffet and not by menu. Call 633-2589 for reservations and additional information.
Baltimore will be host to the second annual ''Fan-Out,'' a multi-media convention for sci-fi fantasy fans.
The convention will take place March 1 through 3 at the Marriott Hunt Valley Inn on Shawan Road. Present for autographs sessions and panel discussions will be Denise Crosby, Ritch Brinkley and William Campbell. Crosby is Natasha Yar in ''Star Trek: The Next Generation,'' Brinkley did ''Beauty and the Beast'' and is currently appearing on ''Twin Peaks'' and ''Murphy Brown.'' Campbell, who was Caryl Chessman in the 1955 feature film, ''Cell 2455, Death Row,'' did two roles in the original ''Star Trek'' series.
4( For more information, call 676 7330.
Did you think you'd seen the last of the ''Nightmare on Elm Street'' films? You haven't. ''Nightmare on Elm Street 5'' didn't do that well at the box office, but the producers are going to try again, with Number Six. Johnny Depp, who appeared in the first in the series, will do a small role in the new film ''in a gesture of gratitude.'' Also appearing in small roles will be Roseanne Barr, husband Tom Arnold and Alice Cooper.
The current Top 10 video titles, according to Variety, include four films that did very well in movie houses and six that did not. At the top of the list is ''RoboCop 2,'' a theatrical loser. Number 2 is ''My Blue Heaven,'' another theatrical failure. Third is ''Dick Tracy,'' which did well in theaters but not enough to cover the cost of production and promotion.
''The Adventures of Ford Fairlane'' (another theatrical loser) is fourth, ''Bird on a Wire'' (a theatrical winner) is fifth, and following these are ''Delta Force 2,'' ''Another 48 Hrs.,'' ''Gremlins 2,'' ''Hunt for Red October'' and ''Ghost Dad.'' ''October'' did well in theaters, and ''Another 48 Hrs.'' did reasonably well (but not as well as expected of an Eddie Murphy film), but the others, ''Delta Force 2,'' ''Gremlins 2'' and ''Ghost Dad'' were disappointments.
All this is of comfort to the movie producer. If a film fails in the theaters, it always has a chance of showing a profit as a cassette.
The word sequel doesn't always spell success. ''Three Men and Little Lady'' is doing nicely ($62 million at last count), but other sequels, ''The Godfather Part III,'' ''Look Who's Talking Too,'' ''The Rescuers Down Under,'' ''Rocky V'' and ''Predator 2'' have not done that well. ''Godfather III'' did $54 million before it disappeared from the Top 10 list, but the movie cost that much to make and much more to promote. ''Rocky V'' did a disappointing $40 million before it died, and ''Look Who's Talking Too'' did $38 million before it left the chart. Of course, we needn't feel too sorry for any of these titles because they should all do well as cassettes.
Premiere magazine offers to settle the mystery about the ''apparition'' in a scene from ''Three Men and a Baby.'' In it, Celeste Holm is holding the child in her arms, and Ted Danson is standing to her side. In the background, standing between what appear to be glass doors or curtains, is what looks like the figure of a young boy.
Premiere says there is no real mystery, that it is not a young boy, it is really a cut-out of Danson, chopped off at the knees.
Charles Dutton, former Baltimorean who attended Towson State University, graduated from the Yale School of Drama and recently completed a Broadway engagement in ''Piano Lesson,'' will be seen in the forthcoming ''Alien 3,'' starring Sigourney Weaver. The film, currently in production, is being produced by Twentieth Century Fox.