Zac Efron is Back in Hawaii for 'Mike & Dave Need Wedding Dates' Filming

Zac Efron puts his hat on as he heads out on Monday afternoon (July 20) in Oahu, Hawaii.

The 27-year-old actor, who wore his shirt inside out, is back in town to finish filming his upcoming movie Mike and Dave Need Wedding Dates.

PHOTOS: Check out the latest pics of Zac Efron

Also starring Anna Kendrick, Adam Devine, and Aubrey Plaza, the movie follows two brothers who buy personal ads to find a pair of dates to be their guests at a wedding.

10+ pics inside of Zac Efron stepping out in Oahu…