New Hollywood bromance alert ... Glen Powell and Johnny Manziel are apparently buddies, because they partied their faces off together in the desert.
TMZ obtained video of Glen and Johnny hanging out last night at Casa Amigos Tacos and Tequila in Scottsdale, where Johnny Football had a VIP section.
Folks who were there say Johnny was already in the club when Glen showed up and joined the group.
We're told this wasn't a coincidence .