I think he could be - He looks much younger ( but people also tell Me that 'I look younger than I am' because I'm an optimist & it's visible outside :) - so it can be This!  ^_^ ). 

I don't know the exact age of any of them cause it was not given in a movie - but I guess both of them were in their 20-ies :) 

And Branch 'looked older' when he was Sad cause he was frowning for most of the time, which caused some visible wrinkles...

... That disappeared when he got Happy Again!  ^_^ 

- See? :) - He definitely looks younger than he did in the pic above now! 😉

Conclusion: Positivity makes you look Younger! :) 

( - Remember about it, take my advice & Stay Positive!  ^_^  cause it has Many More Benefits, for your appearence, Health and Well Being! 😉 )