Its called in a house in a heartbeat by John Murphy. Its on the film soundtrack for 28 days later and is available to buy. I dont think John Murphy has released it on its own rights. Great film though
Don't know title of song but I'd say it's definitely Thin Lizzy. Haven't been able to download this yet but I notice that they've done a song called 'Jailbreak' - or is that too obvious?
Sorry Foxybox its definately not The Animals the lines sang in a different way, it's hard to describe if you havn't seen the ad.
genypha it isn't Jailbreak either, I got out a few Thin Lizzy CD's to look for the song but no luck. I'm only guessing at Thin Lizzy too it just sounded similar.