Tonight: Watch a free screening of the 1947 film version of Brighton Rock at the Church of the Immaculate Conception, Farm Street W1. Free, all welcome, 6.45pm.
Horniman Museum is open till 9pm tonight for some light hearted scientific debate with Café Sci – Are You Talkin’ to Me? A free session from 7-9pm.
And Kino host an open-mic short film night at Vibe Live at Truman Brewery, Brick Lane. Films start at 8pm. £4 entry, free to film makers.
Saturday: Shunt are all over the ICA all weekend, all free.
Sunday: Volunteer to help with BCTV's Stanmore Country Park Work Day and cut back the birch and the bramble.
Watch underground short films as part of Coming Up - a free arts festival. Just turn up at Debut in London Bridge, Weston Street, SE1 from 2pm. Have a look at the rest of the programme too. It's all free.
The Roxy pays tribute to Bill Hicks on the 17th anniversary of his death with a screening of American: The Bill Hicks Story and a Q&A with the film maker. 8pm, £4 with all proceeds to the Bill Hicks Wildlife Foundation.
Monday: English National Ballet celebrate their Emerging Dancer award with a day of free activities in the Clore Ballroom at Royal Festival Hall from 10.30am.
Tuesday: “How I use Photoshop” is a free lecture by Alan Gore, hosted by City of London & Cripplegate Photographic Society at City YMCA, Barbican.
Wednesday: LSE's Forum on Religion presents a free public lecture "Good life in hard times" at 6.30pm in the Sheik Zayed Theatre. Please reserve your ticket.
Add your cheap or free event to our selection. Email firstname.lastname@example.org or tweet @londonist #lotc.