James McAvoy starred in The Last King of Scotland alongside Forest Whitaker, who won an Oscar for his portrayal of former Ugandan dictator Idi Amin. He has since made a return visit to northern Uganda, where the film was shot, with the British Red Cross.
During his four-day trip, the Scottish actor saw the work of Red Cross staff in camps for those forced to flee their homes during the 21 years of civil war between government troops and paramilitary group the Lord's Resistance Army.
The UN has described the conflict as the "world's most neglected crisis".
McAvoy said: "The conditions in the camps were awful. It's horrific to think this has been going on for so long, and yet so few people actually know it's happening.
"The Red Cross is providing essential support to those in the camps and also to those who are starting to return home."
Steve Harmison, the England fast bowler who came in for heavy criticism after his lacklustre performance in the recent Ashes series, will be donating all the proceeds from his tour diary to children's charity the Bubble Foundation UK. The diary is due to be published in a fortnight. Harmison said: "There's no way I could make any money out of a book after the way I performed."
Dennis Waterman, who starred in cult TV series Minder, is one of the celebrities playing in this year's annual Mad March Hares golf tournament for Help the Aged. Comedian Eric Sykes, Olympic medal-winning athlete Kris Akabusi and sports presenter Jimmy Hill will also take part in the event in Surrey on 28 March. Actor Robert Powell will host the tournament.
The event has been organised by Stage for Age, the charity's celebrity fundraising arm, and will raise cash for Help the Aged's Senior Mobility Scheme, which helps older people's groups to buy transport equipment.
Trai Anfield, fellow BBC Look North weather presenter Paul Mooney and Tyne Tees Television weatherman Bob Johnson helped promote National Energy Action's campaign to improve energy efficiency in northern England last month. Anfield and Mooney visited a number of homes to advise people on how to use energy wisely and keep costs down.
Proceeds from Kylie Minogue's new swimwear range for high street retailer H&M will go to WaterAid. The store is donating 10 per cent of the proceeds from its entire swimwear collection, including its H&M loves Kylie range, which will be available from May.Lib Dem leader Sir Menzies Campbell fronted a Lymphoma Association appeal last month. The charity asked Campbell to front its appearance on Lifeline, BBC One's monthly charity appeal programme, which was screened last month.
He was diagnosed with non-Hodgkin's lymphoma, a cancer of the lymphatic system, in 2002, but agreed to go public about it only this year in order to help raise awareness of the disease.
Before his involvement with the association, which provides support to anyone affected by lymphoma, the Liberal Democrat leader had chosen not to talk about his illness.
"When you are diagnosed with cancer, you join a club," Campbell said in an interview with the Daily Mail. "No one understands what it means until they have been diagnosed."
A spokeswoman for the Lymphoma Association says: "We approach celebrities who have a personal connection with lymphoma because it helps to have somebody who understands the complexities and difficulties when dealing with this frightening disease."