Frank Oz’ 1997 romantic comedy “In & Out” is a bit of a curiosity, simultaneously ahead of and firmly of its time. A frothy, light-hearted comedy about homosexuality and coming out was a bold move then but now…well, now it’s hard to see it being made at all.

When Midwestern high school teacher Howard Brackett (Kevin Kline) is outed as gay during an Oscar acceptance speech by a former student, his…