The Inbetweeners Movie continues its remarkable assault as One Day and Final Destination 5 enter the fray

The Inbetweeners Movie continues to dominate at the UK box office, grossing a further £5.7m over the Friday-Sunday period and a reported £2m on bank holiday Monday, which pushes its cumulative to £27.7m. The film’s week-on-week drop off without previews is a mere 34%, rising to 57% including previews.

Between Friday-Sunday the film played on 471 screens and recorded an excellent second-week location average of £12,095.

The film posted the biggest first seven days of any live action comedy in the UK, taking £20m to beat out previous biggest The Hangover: Part II on £17.2m and Hancock on £13.1m.

Universal’s romance-drama One Day debuted in second position, taking £2.2m from 429 sites at an average of £5,149. The film has already outgrossed director Lone Scherfig’s previous title An Education and looks to project similarly to Hathaway’s previous romance-drama Love And Other Drugs, which took £1.6m from 210 sites on debut in December 2010.

While One Day lacks the male star-power of that film’s Jake Gyllenhaal, its hugely popular UK source material should be key to pushing it beyond Love And Other Drugs’ £5.3m cumulative.

After scoring a further £1.7m for £15.3m in its third week, Fox’s third-placed Rise Of The Planet Of The Apes should surpass Tim Burton’s 2000 action Planet Of The Apes after one more solid weekend.

Warner Bros’ fifth-placed newcomer Final Destination 5 was the week’s fifth and final film to cross the £1m mark but is the lowest opening of any film in the franchise at £1.45m from 410 sites, £50,000 off the 2000 original which played on 200 fewer screens, and £2m off the debut of the latest in the franchise which went on to gross $12.7m in 2009.

Cowboys & Aliens cemented its position among the year’s most disappointing films, managing only £792,898 on its holdover weekend from a hefty 478 site, while seventh-placed Harry Potter and The Deathly Hallows: Part 2 continued its charge up the all time list, taking another £765,191 for £70.6m.

Warner Bros’ behemoth is now the third biggest film ever at the UK box office, behind Avatar and Toy Story 3, neither of which it is likely to surpass.

While expectations weren’t as high as for Paramount’s tentpole, Lionsgate’s 3D swords and sandals action Conan The Barbarian joins Cowboys & Aliens on the dud pile, managing only £622,268 from 345 locations at a modest £1,804 average.

Fox will be happier with their Almodovar latest The Skin I Live In, which made £325,349 from 125 locations at an average of £2,603. The weekend haul was £30,000 more than the Spanish director’s 2009 film Broken Embraces, which benefitted from Penelope Cruz’s star power.