Need Help with sound out of PS3

[vol_in_ar]

Put a movie in for my daughter (Epic) but the sound isn't working
You can see the mouths moving but there's no voices, I have hooked straight to a Samsung TV, with an HDMI cable

Any help is appreciated
Thanks

 

[YankeeVol]

Unplug the HDMI cable from the back of the TV and plug it back in.

 

[vol_in_ar]

thanks went into settings and audio, and set to default and it worked

So she's happy, she had probably watched for 30 minutes before saying anything