"Mark says, 'I haven’t smoked pot in 10 years; the second half’s going to be so much fun,' " the 'A Real Pain' actor claims

"As we move into 2025, let’s lean on community, kindness and hope — and remember that rest is necessary for the road ahead," the actor wrote

Garner and Ruffalo starred as Jenna Rink and Matt Flamhaff in the 2004 rom-com, while Greer played Jenna's "frienemy" Lucy Wyman

Fans are frequently “handing me Razzles,” says Mark Ruffalo of the rom-com classic’s impact