Alan Cumming has dubbed 2003’s ‘X2: X-Men United’ the “gayest film” he’s “ever done”. The 59-year-old actor – who came out publicly in 1998 – played the mutant Nightcrawler/Kurt Wagner in the blockbuster, which also starred the likes of Sirs Patrick Stewart, 83, and Ian McKellen, 85, and was helmed by Bryan Singer, 58. And the ‘Spice World’ actor loves how the flick educates people about “queerness” in an “artistic way”. He told Entertainment Weekly: “Oh, I think the X-Men film I’m in is the gayest film that I’ve ever done, and that’s me saying that. It’s got a queer director, lots of queer ac…