The Wonders Band was a fictional band in the movie 'That Thing You Do!'. In the movie, they had a meteoric rise to fame with their hit song. Their story was filled with the typical struggles of a new band, like dealing with record labels, touring, and the pressures of sudden popularity.
The Wonders is purely imaginative. It doesn't draw from any actual happenings. The story and characters are crafted from the author's imagination to entertain and engage the audience.
Yes, Band of Brothers is true. It's a recreation of actual historical events and the soldiers' struggles. The show incorporates real details and tries to stay true to the reality of the war to give viewers an accurate glimpse into that period.