"They came out to LA to surprise me, we went to Disneyland and we ate pot brownies. It was literally heaven," Garfield told W Magazine last month.
"How 'bout Space Mountain three times in a row? I freaked out on It's a Small World. I was like, 'It is a f**king small world.'"
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The revelation caused a bit of a stir, as the activity was illegal at the time. However, it would not have been illegal for him to be high at the Globes. A law change in November 2016 made it legal for anyone over the age of 21 to use small amounts of marijuana.
When asked about it by Variety, Garfield was blasé about the fuss it caused.
"I think everyone's done that or they want to do it. I'm one of the many people that did it and had the greatest time ever."
Though he did highlight one downside, suggesting that anytime he goes to Disneyland now, "people might wonder".
A bit of 'Mary Jane' might explain one of the former Spider Man's actions during the ceremony. When Ryan Gosling accepted his award for Best Actor in a Comedy or Musical, the cameras caught Garfield kissing Deadpool actor Ryan Reynolds, who had just lost the award.
The video caused Emma Stone to crack up when she was shown it after the ceremony.