Benjamin Trotsman, 37, was spotted driving erratically in the early hours of the morning by another trucker who called police.
He was travelling north on the M6 and was seen veering across the carriageway over a 25-mile stretch between Kendal and Penrith in Cumbria.
A Cumbria Police spokesman said: "The driver was seen to be watching a film on a laptop computer that was situated on the dashboard in his cab.
"He appeared oblivious to other motorists and continued to drive in an erratic manner, speeding up and slowing down, and crossing on occasions on to the hard shoulder."
Police stopped the lorry and when they examined his laptop it appeared that Trotsman had been watching Battlestar Galactica.