Does anyone know how to slow down a video taken on my phone?

[lucysmam]

I think dd2's praying mantis is testing out his wings in his little house; but he's that fast I'm not 100% sure whether he is, or he's just jumping.

Ideally, I'd like to slow it down so we can see properly what he's up to, but still keep the original.

Anyone able to help me out with "how to" instructions? :)

Do you have an iphone?

Load it into IMovie, tap on the clip, theres a little clock at the bottom which you can use to speed up or slow down

It's a Samsung, but maybe there's similar! I'll have a look.