John Prescott makes a cameo appearance arriving at the church for the wedding, but during the service he is nowhere to be seen.
It is summer, but after it says '6 months later', all the trees are green and it still appears to be summer.
In the scene where Smithy is driving on the motorway and talking to the baby, when the shot cuts to the child you can see that the car's handbrake is on.
Smithy drives alongside Gavin on the motorway and suggests they stop at Chieveley services, which they do in the next scene. However, on the motorway they are seen driving past a sign for Junction 2 of the M48, meaning they are some 70 miles from Chieveley.