Turning an iconic movie into a theatrical farce can be dangerous indeed: though it might work brilliantly, it can easily fail embarrassingly. This New Millennium Theatre Company comedy falls in between. Styled as a mockumentary following the cast and crew of a 2003 Chicago production of a musical based on Top Gun, it comes complete with auditions (as funny as the first rounds of American Idol), rehearsals, and talking heads. Writer-director Guy Schingoethe, an indefatigable comic actor, pulls possessed performances from his cast, especially the underused Leslie Kerrigan, playing a choreographer who vents in dance. But the show’s too long, and the elaborate subplots (repressed homosexuality abounds) temper the over-the-top payoff of the musical’s disastrous opening night. –Ryan Hubbard a Through 5/5: Fri-Sat 11 PM, National Pastime Theatre, 4139 N. Broadway, 773-989-4515, $15.