In addition to German POWs, the U.S. held about 51,000 Italian POWs during WW2.

Some are covered in an award winning documentary film. According to the film's website:

Featuring rare period footage of POW camps, "Prisoners in Paradise" follows six Italian POWs (and the women they met in America) on their extraordinary journey—full of challenges, love, perseverance, and good luck. Captured primarily in Northern Africa—where they had been surviving on hard biscuits and water—the Italian POW’s were uniformly amazed at the abundance of food in the USA and the generosity of their captors.

Interesting to note:

Shortly after the bulk of the Italian POW’s arrived, Italy officially switched sides in the war, and over ninety percent of the POWs agreed to collaborate with the Allied war effort.

The site includes a clip (4:54) from the film.

There are plenty of movies to cover. This one is probably the most famous: "The Great Escape" starring Steve McQueen, James Garner and Richard Attenborough. It is based on the true story of a group of Allied POWs who escaped from Stalag Luft III.

According to its IMDb plot summary:

The Nazis, exasperated at the number of escapes from their prison camps by a relatively small number of Allied prisoners, relocates them to a high-security "escape-proof" camp to sit out the remainder of the war. Undaunted, the prisoners plan one of the most ambitious escape attempts of World War II.

According to this site, many of the scenes are true to life, though with the usual composite characters and mixed-up timelines.

WMNU-TV in Michigan has posted a viewer's guide (PDF) for the 2004 award winning documentary called "The Enemy in Our Midst: Nazi Prisoner of War Camps in Michigan's Upper Peninsula."

They also offer a booklet called POW Camps in the U.P. (PDF), which contains original articles cited in the documentary.

According to their site:

From 1944 to 1946, the German prisoners called five POW camps in the Upper Peninsula home: Camps AuTrain and Evelyn in Alger County, Camp Raco in Chippewa County and Camps Sidnaw and Pori in Houghton County. Brought in under a cloak of secrecy by the U.S. Army, the prisoners eventually encountered local residents, who were reluctant to accept the POWs.

and

The project, which took two years to complete, contains many scenes shot throughout the Upper Peninsula. Also included in the 161-minute documentary are hundreds of historic photos, vintage film and interviews with local residents who had encounters with the POWs.

Here's another good documentary: The Enemy Within (52:04).

Filmmaker Eva Colmers follows her father's story - Theo Melzer - who spent three and a half years in a POW camp in Lethbridge, Alberta. Growing up in Germany, she had always been puzzled by her father's fond memories of his POW life, so when she moved to Canada, she set out to rediscover this story. What she found surprised her. Watch as Theo Melzer, along with other POWs, recount how their lives were changed by the unexpected respect and dignity they received at the hands of their Canadian captors.

Lethbridge, AB is about 500 km (310 miles) south of Wainwright, AB.

Watch online for free, courtesy of the National Film Board of Canada. It's well worth your time.