All I know about this little flash of Mel Gibson kissing another dude is it's from Peter Weir's 1981 film Gallopoli - it looks like it's behind-the-scenes footage from the set, but I have never seen Gallopoli (I know, I have been saving it for a rainy day since Weir's so unprolific) so I don't know that for 100% sure. But Gallopoli sure seems like it was a gay ol' time for Mel.
Anyway sorry to start off your Monday by making you mourn what we lost Mel-Gibson-wise between hot gay 1981 and racist crazy 2017 - what once was so wonderful has turned to ashes in our mouths. (But then this is true for more than just Mel Gibson.) But it's Peter Weir's 73rd birthday today and we wanted to wish him a happy. Please make another movie, Peter!