Name of this movie?

In 2002 I watched an epic movie about a time portal connecting a closet in the infamous Cabrini–Green Projects to the year 1975. The portal is in the 13th floor and the time traveler who was a 13 years old kid always needed to move down the dangerous stairs in 2002 or 1973. He thrived in 1975 by buying old LED and... show more In 2002 I watched an epic movie about a time portal connecting a closet in the infamous Cabrini–Green Projects to the year 1975. The portal is in the 13th floor and the time traveler who was a 13 years old kid always needed to move down the dangerous stairs in 2002 or 1973. He thrived in 1975 by buying old LED and VFD calculators in 2002 and selling them in 1975. One of the calculators he sold had a 1994 Fifa World Cup logo on the battery and this caught the attention of a 1975 physics graduate student who bought the calculator. He follows the kid and discovers the secret and the way the kids activates the time portal. He pass through the portal to 2002 and explores the year 2002. The plot continue with sci fi drama, action and romance.
I can't find this movie at all though I truly remember seeing it.
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