Reporting Canadian RRSP Withdrawl on US Taxes

I am a US citizen and last year I had a withdraw from my Canadian RRSP.  When I go to enter it under Wages and income I am not sure what the difference is between Total Distribution and Taxable Part of Distribution.  For an example if my total withdraw was $10000 and the Canadian government withheld $2500 (25%).  What would I enter in turbotax for each of the distribution entries?   

 

Also should I also be filling for a foreign tax credit on my taxes this year?

 

Any help will be greatly appreciated in understanding this tax entry.