Los Angeles: Tom Hanks has applauded his `Parkland` co-star Zac Efron for seeking help for his substance problem.
Hanks called Efron`s effort in seeking treatment a "courageous step to take", reported E! News.
"I`m not hip about (efron`s problem) but I think anybody who says, `Hey, maybe I should go work on this,` more power (to him)," Hanks said.
Efron broke his silence following his rehab revelation just last week, posting a picture from a trip to Peru he just took with his dad and thanking fans for their "support these past few weeks."