I know this is right because I've seen them play it live a few times and watched videos
You can work out timings for yourself its not too hard.
Verse -
Rhythm:
e|---------------------------------------------------|
B|---------------------------------------------------|
G|--5555--44444444444444--2222--00000000000000--5555-|
D|--5555--55555555555555--2222--22222222222222--5555-|
A|--7777--55555555555555--3333--22222222222222--7777-| Then repeat
E|---------------------------------------------------|
Lead:
[ Tab from: http://www.guitaretab.com/b/bombay-bicycle-club/197633.html ]
e|----------------------7----------------------7-|
B|---8------8-------8-0----7-------7-------7-0---|
G|--9----7-9-----7-9------9-------9-------9------|
D|----9-9----9-9------------9-10-9--9-10-9-------|
A|-----------------------------------------------|
E|-----------------------------------------------| Repeat when needed
Chorus -
Rhythm:
e|--(0)-----(0)
B|--(0)-----(0)
G|--(0)-----(2)
D|--(2)-----(2)
A|--(3)-----(0)
E|--(0)-----(0)
Lead:
e|----------------------------------------------------|
B|----------12-12-12----------------------------------|
G|--14-14-14----------------11-11-11------------------|
D|------------------12-12-12--------14-14-14-12-12-12-|
A|----------------------------------------------------|
E|----------------------------------------------------|
Sam J